Exercise logic.propositional.dnf.unicode
Description
Proposition to DNF (unicode support)
Derivation
Final term is not finished
¬(q → (¬¬p ∧ p ∧ p)) ↔ ((r ↔ s) ∨ F ∨ ¬s)
⇒ logic.propositional.defequiv¬(q → (¬¬p ∧ p ∧ p)) ↔ ((r ∧ s) ∨ (¬r ∧ ¬s) ∨ F ∨ ¬s)